{"id":32742,"date":"2023-02-01T11:57:56","date_gmt":"2023-02-01T06:27:56","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-how-do-i-do-my-homework-with-arrays-functions-and-binary-search-closed\/"},"modified":"2023-02-01T11:57:56","modified_gmt":"2023-02-01T06:27:56","slug":"solved-how-do-i-do-my-homework-with-arrays-functions-and-binary-search-closed","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-how-do-i-do-my-homework-with-arrays-functions-and-binary-search-closed\/","title":{"rendered":"[Solved] How do I do my homework with Arrays, Functions and Binary Search? [closed]"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-652871\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"652871\" data-parentid=\"652726\" data-score=\"3\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>For a start, here is the original ArregloBinario class with the spacing fixed up:<\/p>\n<pre><code>package laboratorio9;\n\nimport java.util.Random;\nimport java.util.Arrays;\n\npublic class ArregloBinario\n{\n    private int[] datos;\n    private static Random generador = new Random();\n\n    public ArregloBinario (int tamanio)\n    {\n        datos = new int[tamanio];\n\n        for (int i=0; i&lt;tamanio; i++)\n            datos[i] = 10 + generador.nextInt(90);\n\n        Arrays.sort(datos);\n    }\n\n    public int busquedaBinaria(int elementoBusqueda)\n    {\n        int inferior = 0;\n        int superior = datos.length-1;\n        int medio = (inferior + superior + 1 ) \/ 2;\n        int ubicacion = -1;\n\n        \/\/ **HOW CAN I CHANGE THE FOLLOWING NTO A RECURSIVE FUNCTION&gt;**\n        do \n        {\n            System.out.print(elementosRestantes(inferior,superior));\n\n            for (int i = 0; i&lt;medio; i++)\n                System.out.print(\"   \");\n            System.out.println(\" * \");\n\n            if (elementoBusqueda == datos[medio])\n                ubicacion=medio;\n            else if (elementoBusqueda&lt;datos[medio])\n                superior = medio-1;\n            else \n                inferior = medio+1;\n\n            medio = (inferior + superior + 1) \/ 2;\n        } while ((inferior &lt;=superior) &amp;&amp; (ubicacion == -1));\n        return ubicacion;                \n    }\n\n    public String elementosRestantes(int inferior, int superior)\n    {\n        StringBuilder temporal = new StringBuilder();\n\n        for (int i = 0; i &lt; inferior; i++)\n            temporal.append( \"   \" );\n\n        for (int i = inferior; i &lt;= superior; i++)\n            temporal.append( datos[i] + \" \");\n\n        temporal.append(\"\\n\");\n        return temporal.toString();\n    }\n\n    public String toString()\n    {\n        return elementosRestantes(0, datos.length-1);\n    }\n}\n<\/code><\/pre>\n<p>And here&#8217;s a recursive version:<\/p>\n<pre><code>package laboratorio9;\n\nimport java.util.Random;\nimport java.util.Arrays;\n\npublic class ArregloBinario\n{\n    private int[] datos;\n    private static Random generador = new Random();\n\n    public ArregloBinario (int tamanio)\n    {\n        datos = new int[tamanio];\n\n        for (int i=0; i&lt;tamanio; i++)\n            datos[i] = 10 + generador.nextInt(90);\n\n        Arrays.sort(datos);\n    }\n\n    private int recursive (int elem, int inf, int sup, int med) {\n        System.out.print(elementosRestantes(inf,sup));\n\n        for (int i = 0; i&lt;med; i++)\n            System.out.print(\"   \");\n        System.out.println(\" * \");\n\n        if (inf &gt; sup)\n            return -1;\n\n        if (elem == datos[med])\n            return med;\n\n        if (elem&lt;datos[med])\n            return recursive (elem,inf,med-1,(inf + med) \/ 2);\n\n    return recursive (elem,med+1,sup,(med + sup + 2) \/ 2);\n    }\n\n    public int busquedaBinaria(int elementoBusqueda)\n    {\n        int inf = 0;\n        int sup = datos.length-1;\n        int med = (inf + sup + 1 ) \/ 2;\n        int ubi = -1;\n\n        return recursive (elementoBusqueda,inf,sup,med);\n    }\n\n    public String elementosRestantes(int inferior, int superior)\n    {\n        StringBuilder temporal = new StringBuilder();\n\n        for (int i = 0; i &lt; inferior; i++)\n            temporal.append( \"   \" );\n\n        for (int i = inferior; i &lt;= superior; i++)\n            temporal.append( datos[i] + \" \");\n\n        temporal.append(\"\\n\");\n        return temporal.toString();\n    }\n\n    public String toString()\n    {\n        return elementosRestantes(0, datos.length-1);\n    }\n}\n<\/code><\/pre>\n<p>Here&#8217;s a sample run under Eclipse as the intensive testing it underwent \ud83d\ude42<\/p>\n<pre><code>Please write the number of elements in the array.\n20\n14 18 19 20 22 31 43 50 55 58 58 59 62 71 72 74 85 92 95 98 \n\nWrite a value (-1) to go out: 95\n14 18 19 20 22 31 43 50 55 58 58 59 62 71 72 74 85 92 95 98 \n                               * \n                                 59 62 71 72 74 85 92 95 98 \n                                              * \n                                                85 92 95 98 \n                                                       * \nThe value 95 was found in position 18.\n\nWrite a number (-1 to go out): -1\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\"><\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved How do I do my homework with Arrays, Functions and Binary Search? [closed] <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] For a start, here is the original ArregloBinario class with the spacing fixed up: package laboratorio9; import java.util.Random; import java.util.Arrays; public class ArregloBinario { private int[] datos; private static Random generador = new Random(); public ArregloBinario (int tamanio) { datos = new int[tamanio]; for (int i=0; i&lt;tamanio; i++) datos[i] = 10 + generador.nextInt(90); Arrays.sort(datos); &#8230; <a title=\"[Solved] How do I do my homework with Arrays, Functions and Binary Search? [closed]\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-how-do-i-do-my-homework-with-arrays-functions-and-binary-search-closed\/\" aria-label=\"More on [Solved] How do I do my homework with Arrays, Functions and Binary Search? [closed]\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[361,413,323],"class_list":["post-32742","post","type-post","status-publish","format-standard","hentry","category-solved","tag-arrays","tag-function","tag-java"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] How do I do my homework with Arrays, Functions and Binary Search? 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